Isaac p



106. COMPOSITIONS,

COATING OR PLASTIC 7 UNITED STATES Cross Reference PATENT ()FFICE.

ISAAC P. WENDELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CHARLES P.TASKER, OF SAME PLACE.

COMPOSITION OF M ATTR FOR THE MANUFACTURE OF AXLE-BEARINGS, &c.

SPECIFICATION forming part of Letters Patent No. 325.889, datedSeptember 8, 1885.

- 'A pplication filed February 14, 1885. (No specimens.)

To all whom it may concern:

Be it known that I, ISAAC P. WENDELL, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and useful Composition of Matter, ofwhich the following is a specification.

The objectof my invention is to provide an inexpensive material havingthe proper hardness and durability for the manufacture of axle orjournal bearings, packings for pistons, and like articles.

My invention consists in a compound composed ofgshegtg, litharge,plgmhagg, snl hur and silicate o1 sgda. The asbestus, having first beenreduced to a condition of fiber or powder, is,with litharge, plumbago,and sulphur in the form of powder, well mixed with liquid silicate ofsoda, molded into the desired form, and Qried..hx .eii1, .q ellateral-beet The" proportions oFtFe "materials"? above named which Ihave found to produce a good article are, three pounds of asbestus, one-2, g 7, I 5 fourth of a pound of l i t harge, three-fourths of a poundof lumbago, one-eighth of a pound of sulphp r, an roar pounds of ii uidsilicate of 0 daor the corresponding amount of crystal s llzed'silicateof soda or the correspon lug amount of other equivalent j nduratingmate;

, 5121-. These proportions, however, may be varied,and forms of carbonother than plumbago and oxides or combinations of lead other thanlitharge may be employed,'without departing from my invention.

Having thus described my invention, I claim- A composition of matterconsisting of asbestus, litharge, plumba-go, sulphur, and silicafe ofsoda, substantially as set forth.

In testimony whereof I have hereunto signed my name this 3d day ofFebruary, .A. D. 1885.

ISAAC P. W'ENDELL.

In presence of- WM. 0. STRAWBRIDGE,

J. BONSALL TAYLOR.

Examiner

